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Chapter 8 quiz 1

Accommodation Ability to focus for close vision
Accommodation pupillary reflex reflex constriction of the pupils when viewing close objects
astigmatism blurred vision, resulting from unequal curvatures of the lens or cornea
Cataract clouding of the lens resulting in loss of sight
convergence medial movement of the eyes during focusing on close objects
Emmetropia normal vision
Glaucoma condition of increasing pressure inside the eye, resulting from blocked drainage of aqueous humore
hyperopia inability to focus well on close objects; farsightedness
myopia nearsightedness
night blindness inability to see well in the dark; often a result of vitamin A deficiency
Photopupillary reflex reflex constriction of pupils when they are exposed to bright light
refraction light bending
aqueous humor fluid in the anterior segment that provides nutrients to the lens and cornea
sclera the "white" of the eye
optic disk area of retina that lacks photoreceptors
retina layer containg the rods and cones
vitreous humor gel-like substance that helps to reinforce the eyeball
choroid nutritive (vascular) layer of the eye
Cornea most anterior part of the sclera- your window world
iris pigmented "diaphragm" of the eye
Created by: RobertVoje